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Background: Primary focal dystonia (PFD) is characterized by motor symptoms.

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To review current knowledge on nonmotor symptoms (NMS), particularly psychiatric features, in genetic Parkinson disease (PD) and to provide original data for genetic and idiopathic PD. Data Sources: A MEDLINE search using Parkinson and known PD genes focused on the presence of depression, anxiety, hallucinations, and dementia was performed. Original data from 82 outpatients with idiopathic (n=55) and genetic (n= 27) PD were obtained. Study Selection: All studies including information on NMS and patients with genetic PD. Data Extraction: Study methods and clinical and genetic information were summarized. Data Synthesis: The literature search yielded 1855 citations; 305 included genetic information on PD patients, of which 119 also contained information on any type of NMS (990 cases). Availability of information varied by